return;
try {
LanguageTag tag = new LanguageTag(newLang);
int tagType = tag.tagType();
if (tagType == LT_ILLEGAL) {
arp.warning(taintMe, WARN_BAD_XMLLANG, tag.errorMessage());
}
if ((tagType & LT_UNDETERMINED) == LT_UNDETERMINED) {
arp
.warning(taintMe, WARN_BAD_XMLLANG,
"Unnecessary use of language tag \"und\" prohibited by RFC3066");